| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coin form nonaqueous secondary battery with a high capacity and superior load characteristics. <P>SOLUTION: In the coin-form nonaqueous secondary battery which includes a positive electrode, a negative electrode, a separator between the positive electrode and negative electrode, and an enclosed space housing a nonaqueous electrolytic solution, which is formed with a positive electrode can, a negative electrode can, and an annular insulative gasket, the positive electrode is composed of a pelletized compact with thickness of 0.3 mm or larger thickness, and the coin form nonaqueous secondary battery is constituted, by using the electrolytic solution with conductivity of 10.3 mS/cm or larger and viscosity of 2.5 cp or smaller. A solution with a lithium salt as an electrolyte dissolved into at least two kinds of mixed solvent containing a cyclic carbonate, and an noncyclic carbonate is preferred as the electrolytic solution. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
